# How do I protect a wiz-owned :enterfunc?

Gevan Dutton (shanos@es.co.nz)
Wed, 27 Nov 1996 17:28:25 PST

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    	On Wed, 27 Nov 1996, Francis Litterio wrote:

    	I must protect the verb so that it can only be called by the
    	server and never by a programmer or another verb.  But when the
    	1.8.0p5 server calls :enterfunc, caller and player are both set to
    	something _other_ than #-1.
    	What check can I do to enforce that the :enterfunc is only
    	called from the server?

    Well, if you want to be really sure (and probably there's a better way):
      last_activ = callers()[$];
      if (last_activ[4]!=#-1 && last_activ[3]!=#-1 && last_activ[2]==""))
        "caller was not a builtin function";
        raise(E_PERM);
      endif
      ...